1 /*
2  * Copyright 2017 Google Inc. All rights reserved.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 using System;
18 
19 namespace FlatBuffers
20 {
21 	/// <summary>
22 	/// Class that collects utility functions around `ByteBuffer`.
23 	/// </summary>
24 	public class ByteBufferUtil
25 	{
26 		// Extract the size prefix from a `ByteBuffer`.
GetSizePrefix(ByteBuffer bb)27 		public static int GetSizePrefix(ByteBuffer bb) {
28 			return bb.GetInt(bb.Position);
29 		}
30 
31 		// Create a duplicate of a size-prefixed `ByteBuffer` that has its position
32 		// advanced just past the size prefix.
RemoveSizePrefix(ByteBuffer bb)33 		public static ByteBuffer RemoveSizePrefix(ByteBuffer bb) {
34 			ByteBuffer s = bb.Duplicate();
35 			s.Position += FlatBufferConstants.SizePrefixLength;
36 			return s;
37 		}
38 	}
39 }
40